1264340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{821}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 3314304

約数和(自身を除く): 2049964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 821, 1540, 1642, 3284, 4105, 5747, 8210, 9031, 11494, 16420, 18062, 22988, 28735, 36124, 45155, 57470, 63217, 90310, 114940, 126434, 180620, 252868, 316085, 632170, 1264340]

約数ペア:

[(1, 1264340), (2, 632170), (4, 316085), (5, 252868), (7, 180620), (10, 126434), (11, 114940), (14, 90310), (20, 63217), (22, 57470), (28, 45155), (35, 36124), (44, 28735), (55, 22988), (70, 18062), (77, 16420), (110, 11494), (140, 9031), (154, 8210), (220, 5747), (308, 4105), (385, 3284), (770, 1642), (821, 1540)]